Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.
CastleNet TechnologyROCO:8059 -4.52%52 Days Inventory is 69.94 as of Dec. 2025, which is 8% below its 10-year median of 76.35. GuruFocus rates ROCO:8059 with a GF Score™ of 52/100 and a GF Value™ of NT$365.76 (Possible Value Trap). The stock has 7 warning signs investors should review. Among 2,419 Hardware companies, CastleNet Technology ranks better than 54.15% on this metric.
The historical rank and industry rank for CastleNet Technology's Days Inventory or its related term are showing as below:
ROCO:8059'
s Days Inventory Range Over the Past 10 Years
Min: 27.1 Med: 76.35 Max: 517.92
Current: 87.48
During the past 13 years, CastleNet Technology's highest Days Inventory was 517.92. The lowest was 27.10. And the median was 76.35.
ROCO:8059's Days Inventory is ranked better than 54.15% of 2419
companies
in the Hardware industry
Industry Median: 94.24
vs ROCO:8059: 87.48
CastleNet Technology's Days Inventory
declined
from Dec. 2024 (265.99) to Dec. 2025 (69.94).
Inventory Turnover measures how fast the company turns over its inventory within a year.
CastleNet Technology's Inventory Turnover for the
three
months ended in Dec. 2025 was 1.30.
Inventory-to-Revenue determines the ability of a company to manage their inventory levels. It measures the percentage of Inventories the company currently has on hand to support the current amount of Revenue.
CastleNet Technology's Inventory-to-Revenue for the
three
months ended in Dec. 2025 was 0.67.
CastleNet Technology (ROCO:8059) Days Inventory Explanation
Days Inventory indicates the liquidity of the inventory. Generally, a lower Days Inventory is preferred as it indicates a shorter duration to clear off the inventory. An increase of the ratio may indicate the company's sales slowed. Similar ratios related to Days Inventory are:
1. Inventory Turnover measures how fast the company turns over its inventory within a year.
CastleNet Technology's Inventory Turnover for the
three
months ended in Dec. 2025 is calculated as
2. Inventory-to-Revenue determines the ability of a company to manage their inventory levels. It measures the percentage of Inventories the company currently has on hand to support the current amount of Revenue.
CastleNet Technology's Inventory to Revenue for the
three
months ended in Dec. 2025 is calculated as
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
Be Aware
A lot of business are seasonable. It makes more sense to compare Days Inventory from the same period in the previous year instead of from the previous quarter.
CastleNet Technology Days Inventory Related Terms
CastleNet Technology Days Inventory Historical Data
* Premium members only.
The historical data trend for CastleNet Technology's Days Inventory can be seen below:
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
ROCO:8059 vs CSCO, CIEN, MSI: Days Inventory Comparison
For the Communication Equipment subindustry, CastleNet Technology's Days Inventory, along with its competitors' market caps and Days Inventory data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
CastleNet Technology Days Inventory vs Hardware Industry
For the Hardware industry and Technology sector, CastleNet Technology's Days Inventory distribution charts can be found below:
* The bar in red indicates where CastleNet Technology's Days Inventory falls into.
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
CastleNet Technology (ROCO:8059) has a Days Inventory of 69.94 as of Dec. 2025. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on CastleNet Technology and its competitors. This is near median its historical median of 76.35. Over the past decade, CastleNet Technology's Days Inventory has ranged from 27.10 to 517.92. According to the industry distribution chart, CastleNet Technology ranks #1109 out of 2419 companies in the Hardware industry, placing it in the top 45.8%.
Is CastleNet Technology's Days Inventory too high?
CastleNet Technology's current Days Inventory of 69.94 is near median its 10-year median of 76.35. Over the past 10 years, this metric has ranged from a low of 27.10 to a high of 517.92. The Hardware industry median Days Inventory is 94.24. CastleNet Technology's value of 69.94 is 25.8% below this industry median. Based on the distribution chart, CastleNet Technology ranks #1109 out of 2419 companies in the Hardware industry, which is above the industry midpoint. Overall, CastleNet Technology has a GF Score™ of 52/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does CastleNet Technology's Days Inventory compare to CSCO and CIEN?
According to the Hardware industry distribution chart, CastleNet Technology ranks #1109 out of 2419 companies for Days Inventory. This puts CastleNet Technology in the upper half of its industry. The industry median Days Inventory is 94.24. CastleNet Technology's value of 69.94 is 25.8% below this benchmark. Historically, CastleNet Technology's own Days Inventory has ranged from 27.10 to 517.92 over the past decade. While the company's 10-year median is 76.35 vs. the industry median of 94.24, CastleNet Technology has consistently been below the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Days Inventory for a Hardware company?
The median Days Inventory among Hardware companies is 94.24, based on 2,419 companies in the industry. Companies in the top quartile (top 25%) have a Days Inventory significantly above this median, while those in the bottom quartile fall well below. However, Days Inventory should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. CastleNet Technology's current Days Inventory of 69.94 is 25.8% below the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Days Inventory mean?
A high Days Inventory can signal that a stock is expensive relative to its fundamentals. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on CastleNet Technology and its competitors. For the Hardware industry, the median Days Inventory is 94.24 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. CastleNet Technology's current Days Inventory is 69.94, which is near median its own 10-year median of 76.35. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is CastleNet Technology stock overvalued right now?
Based on GuruFocus' analysis, CastleNet Technology (ROCO:8059) is currently considered Possible Value Trap. The stock's GF Value™ is NT$365.76, compared to a current price of NT$15.85 — trading 95.7% below its estimated fair value. The current Days Inventory is 69.94, which is near median its 10-year median of 76.35 and 25.8% below the Hardware industry median of 94.24. CastleNet Technology's overall GF Score™ is 52/100 with 7 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Days Inventory calculated?
Days Inventory is calculated from a company's financial statements. For CastleNet Technology (ROCO:8059), the current Days Inventory is 69.94 as of Dec. 2025. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.
Is CastleNet Technology (ROCO:8059) Overvalued in 2026?
Based on GuruFocus' analysis, CastleNet Technology stock appears to be undervalued.
The current stock price of NT$15.85 is trading 95.7% below its estimated GF Value™ of NT$365.76.
GuruFocus considers CastleNet Technology to be Possible Value Trap.
Key valuation signals for ROCO:8059:
Days Inventory: 69.94 (near median its 10-year median of 76.35)
GF Value™: NT$365.76 vs. price of NT$15.85 (95.7% below fair value)
Industry Position: 25.8% below the Hardware median (#1109 of 2419)
No single metric tells the full story. See the ROCO:8059 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
CastleNet Technology Inc is a manufacturer of network communication equipment in Taiwan. It is predominantly engaged in the manufacturing and selling of consumer electronics products such as broadband communications and digital home entertainment. It offers products like EMTA Gateway, Data Gateway, Data Modem, and WiFi Mesh System among others. Geographically, the company generates a majority of its revenue from America followed by Asia, Europe, and Oceania.
52GF Score
Get the complete analysis for ROCO:8059
Days Inventory is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
ROCO:8059 has been successfully added to your 
